1890042 has 32 divisors (see below), whose sum is σ = 4713984. Its totient is φ = 490800.

The previous prime is 1890041. The next prime is 1890079. The reversal of 1890042 is 2400981.

It is a junction number, because it is equal to n+sod(n) for n = 1889994 and 1890021.

It is not an unprimeable number, because it can be changed into a prime (1890041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1584 + ... + 2507.

It is an arithmetic number, because the mean of its divisors is an integer number (147312).

2^1890042 is an apocalyptic number.

1890042 is an abundant number, since it is smaller than the sum of its proper divisors (2823942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1890042 is a wasteful number, since it uses less digits than its factorization.

1890042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4114.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1890042 is about 1374.7879836542. The cubic root of 1890042 is about 123.6394748287.

The spelling of 1890042 in words is "one million, eight hundred ninety thousand, forty-two".